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Dietary sodium intake and overweight and obesity in children and adults: a protocol for a systematic review and meta-analysis.

Grimes, Carley, Bolhuis, Dieuwerke, He, Feng J and Nowson, Caryl 2016, Dietary sodium intake and overweight and obesity in children and adults: a protocol for a systematic review and meta-analysis., Systematic reviews, vol. 5, pp. 1-6, doi: 10.1186/s13643-015-0175-3.

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Title Dietary sodium intake and overweight and obesity in children and adults: a protocol for a systematic review and meta-analysis.
Author(s) Grimes, CarleyORCID iD for Grimes, Carley orcid.org/0000-0002-9123-1888
Bolhuis, Dieuwerke
He, Feng J
Nowson, CarylORCID iD for Nowson, Caryl orcid.org/0000-0001-6586-7965
Journal name Systematic reviews
Volume number 5
Article ID 7
Start page 1
End page 6
Total pages 6
Publisher BioMed Central
Place of publication London, Eng.
Publication date 2016-01-18
ISSN 2046-4053
Keyword(s) Dietary salt
Dietary sodium
Sodium chloride
Adiposity
Obesity
Body mass index
Body weight
Sugar-sweetened beverage
Summary BACKGROUND: Overweight and obesity in children and adults is a major public health concern. Emerging evidence suggests dietary sodium intake may be associated with obesity. This systematic review and meta-analysis will aim to (i) assess the relation between dietary sodium intake and measures of adiposity in children and adults and (ii) examine the relation between sodium intake and sugar-sweetened beverage (SSB) consumption, which is a known risk factor for obesity.

METHODS/DESIGN: An electronic search will be conducted using Medline Complete, CINAHL, Scopus, Embase and Cochrane central register of controlled trials (CENTRAL). The search strategy will identify published peer-reviewed articles that report on dietary sodium and either a marker of adiposity or SSB consumption. Only human studies (ages >1 year) in English will be included, and no limits will be placed on publication date. No restrictions will be placed on the method of sodium intake assessment. Cross-sectional, prospective studies, and randomised controlled trials with a duration of ≥ 3 months will be included. Studies with participants with renal disease, cancer, type 1 diabetes or heart failure or who are pregnant will be excluded. To assess the quality of studies, the Cochrane's Collaboration tool for assessing risk of bias in randomised trials will be used for randomised controlled trials (RCTs), and the modified Newcastle-Ottawa Scale will be used for cross-sectional and prospective studies. Meta-analysis will be used to assess the relation of sodium intake with two primary outcomes: (i) BMI and body weight in adults and BMI z-score in children and (ii) weight category (i.e. healthy weight vs. overweight/obese). For any outcomes in which meta-analysis is not possible, we will present data as a systematic review. Findings will be grouped and reported separately for children and adolescents (ages 1-17 years) and adults (ages >18 years).

DISCUSSION: This review and meta-analysis will provide insight into the relation between dietary sodium intake and overweight and obesity. This information can be used to inform public health policies which target population sodium consumption.
Language eng
DOI 10.1186/s13643-015-0175-3
Field of Research 119999 Medical and Health Sciences not elsewhere classified
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30081024

Document type: Journal Article
Collections: School of Exercise and Nutrition Sciences
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.